<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-12-01</periodOfReport>

    <issuer>
        <issuerCik>0001237831</issuerCik>
        <issuerName>GLOBUS MEDICAL INC</issuerName>
        <issuerTradingSymbol>GMED</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002080625</rptOwnerCik>
            <rptOwnerName>Kline Kyle</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>VALLEY FORGE BUSINESS CENTER</rptOwnerStreet1>
            <rptOwnerStreet2>2560 GENERAL ARMISTEAD AVENUE</rptOwnerStreet2>
            <rptOwnerCity>AUDUBON</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19403</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Senior Vice President, CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>true</aff10b5One>

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                <value>Class A Common Stock</value>
            </securityTitle>
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                <equitySwapInvolved>false</equitySwapInvolved>
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                    <value>3646</value>
                </transactionShares>
                <transactionPricePerShare>
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                </transactionShares>
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                </transactionPricePerShare>
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        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy Class A Common Stock)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>53.14</value>
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            <transactionDate>
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                <transactionPricePerShare>
                    <value>0</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2033-03-24</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3646</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>1354</value>
                </sharesOwnedFollowingTransaction>
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                </directOrIndirectOwnership>
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        <derivativeTransaction>
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                <value>Stock Option (Right to Buy Class A Common Stock)</value>
            </securityTitle>
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                <value>56.43</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-12-01</value>
            </transactionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
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                </transactionAcquiredDisposedCode>
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            <expirationDate>
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            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy Class A Common Stock)</value>
            </securityTitle>
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                <value>64.44</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-12-01</value>
            </transactionDate>
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                <transactionFormType>4</transactionFormType>
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                <equitySwapInvolved>false</equitySwapInvolved>
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                    <value>5000</value>
                </transactionShares>
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            <expirationDate>
                <value>2031-01-25</value>
            </expirationDate>
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                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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                </underlyingSecurityShares>
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                    <value>0</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy Class A Common Stock)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>63.68</value>
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                <equitySwapInvolved>false</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
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                    <value>0</value>
                </transactionPricePerShare>
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                </transactionAcquiredDisposedCode>
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            <expirationDate>
                <value>2032-01-27</value>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
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                    <value>5000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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        </derivativeTransaction>
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    <footnotes>
        <footnote id="F1">This sale was effectuated pursuant to a Rule 10b5-1 trading plan dated August 25, 2025 executed by the reporting person.</footnote>
        <footnote id="F2">These options were granted on March 24, 2023, and vest over a four-year period with one-fourth (1/4) of the options granted vesting on January 1, 2024, the first anniversary of the vesting commencement date, and the balance of the options granted vesting ratably on a monthly basis over the following 36 months.</footnote>
        <footnote id="F3">These options were granted on February 27, 2024, and vest over a four-year period with one-fourth (1/4) of the options granted vesting on January 1, 2025, the first anniversary of the vesting commencement date, and the balance of the options granted vesting ratably on a monthly basis over the following 36 months.</footnote>
        <footnote id="F4">These options were granted on January 25, 2021 and are fully vested.</footnote>
        <footnote id="F5">These options were granted on January 27, 2022, and vest over a four-year period with one-fourth (1/4) of the options granted vesting on January 1, 2023, the first anniversary of the vesting commencement date, and the balance of the options granted vesting ratably on a monthly basis over the following 36 months.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Kelly G. Huller, Attorney-in-Fact</signatureName>
        <signatureDate>2025-12-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
